My wife and I bought a Berlin mattress and Silverstar GT suspension about six weeks ago. Not only was the sales process and service first rate, but we absolutely love the product! My wife is from Switzerland and I lived there for a good part of my life. We are therefore both more accustomed to German sleep systems and were never quite comfortable with what was normally available here in the United States. Also, after sleeping on a memory foam mattress for four years, my wife developed very painful backaches. Enter Axel Bloom. The past six weeks have done wonders for my wife's back, and I would never want to do without the luxury of our new mattress. Thank you, Yong and Bonnie, for your excellent advice and a very pleasant shopping experience!